Dump-car.



J. 0. NEIKIRK. DUMP UAR. APPLICATION FILED OGT.'21, 1909] 956,81 9. Pa ented May 3,1910.

8 SHEETS-11131 1.

J; 0. NEIKIRK.

DUMP GAR. APPLICATION FILED 001221, 1909.

95 ,319, V PatentedMay 3,1910.

' f 8 SHEETS-SHEET 2y J. O. NEIKIBJK.

.DUMP GAR. ATPLIOATION FILED 001'. 21,190

Patented May 3, 1910.-

8 SHEETS-SHEET 3.

m w M W -J. 0. NEIKIR-K.

DUMP OAR.

APPLICATION FILED OUT. 21, 1909.

' Patentd May 3, 1910.

8 SHEETS-SHEET 4 J. 0. NEIKIRK.

DUMP GAR= APPLIOATION FILED 0017.21, 1909.

Patented; May 3, 1910.

J. 0 NEIKIRK.

DUMP GAR. APPLIGATIBN FILED OUT. 21, 1909 Y Patented May 3, 1910.

firm/Man WM W's 6793 s sums-8mm 6.

' J. 0. EEIKIPUKL DUMP OAR.

APPLICATION FILED 001". 21, 1909.

Patented May 8, 1910.

8 SHEETS-SHEET 7.

J. O.x NEIKIRK.

DUMP OAR.

APPLIOATION FILED 091'. 21, 1909.-

Patented May 3, 1910.

8 SHEETS-SHEET 8.

Mfasaes;

UNITED STATES PATENT OFFICE.

JOHN G. NEIKIRK, O F MORGAN PARK, ILLINOIS, ASSIGNOR T NATIONAL DUMP OAR, COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF MAINE.

v 7 956,819, Specification of Letters Patent. Patented May 3, 1910" Application filed October 21, 1909. Serial No. 523,849.

To all whom it may concern: gearing. Fig. 8 is a perspective view of one Be it known that I, JOHN O. NEIKIRK, a of the bushings 1n the movable bearing citizen of the United States, residing at block at the ends of the worm and inclosing Morgan Park, in the county of Cook and the transverse shaft. Fig. 9 is a similar State of Illinois, have invented certain new bushing inclos ng the transverse shaft at the and useful Improvements in Dump-(Jars, of ends and havlng a bearing in the vertical which the following is a specification. guide blocks. Fig. 10 1s a perspective view My invention relates to that class of cars of one of the movable bearing blocks, its known. dump. cars in which there are cenchief function heing to hold the worm geartral discharge openings and downwardly mg 111 inesh. Fig. 11 1s a perspective View of swinging doors which are adapted to close the guideway for the outer ends of their-anssaid openings or to open and release the verse shaft. F 1g. 12 1s aperspective view of load. 7 one ofthe slide blocks in which the outer The object of my invention is to provide ends of the transverse shaft have their hear cfiicient dump dooroperating mechanism .ing.

adapted more particularly for use in ('01): In the drawings the bodyof the car is nection with cars of the type described and composed principally of the side walls 15, claimed in patent application Serial No. the sloping end floor plates 16 and the slop- 510,878,1iled by Frederick Seaherg and mying side door plates 17. At their lower edges self as joint inventors on August. 2, 1909. the sloping plates 1'? are continued down- The object and advantages of cars of that ward vertically, the vertical parts in the type are fully set forth in the oint applicapresent instance taking the. form of chantion referred to and therefore need not be nels 18. The end fioor plates 16, the side set forth at length herein. Briefly stated, floor plates 17 and channels 18 units to form according to the invention described in the a rectangular discharge opening at the cen-' pending ointapplication referred to a hop ter of the. car. The sloping side and floor per car may be constructed with an unohplates 17 are joined to the vertical walls 18 structed discharge opening and of great of longitudinal frame members of the car. width, thus giving to the side and ends of These frame members taken in connection the car Sufficient slope to cause the lading with the sloping floor plates l'l'and the lower to discharge freely and without assistance, portions of the side wall 15 form a longitw and the construction is such that horizontal dinal column of great strength and serve hopper doors may he located at a low level to form the principal part of the structure of thus increasing the capacity of the car. the car body.

. Other ObjOOtSilIld advantages of my iln- The rectangular central discharge opening rovements Will be made apparent-in the orchute above referred to is divided into allowing specification and claims, taken in two parts by a transverse frame member 19 connection "with the accompanying drawformed of a steel plate which has sloping ings, in which side walls 20 converging to a narrow ridge Figure 1 is a side elevation of a car with at their up )er extremities 19. The lower my improvements attached. Fig. 2 is a plan edges 20 o the sloping side portions 20 are view of the same. .Fig. 3 is an end view. made to extend downwardly to the same Fig. 4 is a cross section .on the line 4, 4 of level with the lower edges of the sloping Figs. '1 and 2. Fig. 5 is an end elevation on end floor plates 16.

a larger scale than the above figures, of the The above described construction will 160 lower part ofthe car at one side showing seen to providetwo rectangular discharge particularly the mechanism which operates openings at the center of the car which are one of the dump doors. Fig. 6 is aside elesubstantially square in form. These disvation of the'lowerapart of the car at the chargeopen'ings are closed by downwardly center showing particularly the mechanism swinging dump doors 21 which are hinged I which,"ope-rates the dump doors. Fig. 7 is adjacent the outer edges of said discharge V a longitudinal vertical "sect-ion of the lower openings. There are two doors 21 provided part of the Year at or near the center along for each of the discharge openings making a the axis of one of the door" supporting and total of four doors per car. The dump doors operating shafts and through the worm 21 met along the longitudinal center line 1 0 of the car and their opposite outer edges 22 are turned upwardly preferably at right angles to the body of the doors.

The doors 21 are strengthened and stiffsued by the angle bars 23 which are fixed to them at the under side. These angle bars are bent upwardly at their outer ends to conform to the curvature of the bend adjacent the edges 22 and are extended a considerable distance beyond said edges. The hinge straps 24 are attached tothe angle bars-28 and edges 22 by suitable rivets. These hinge straps'24 are pivoted upon the pins 25 and the said pins are supported by sultable hinge members 26 fixed to the vertical walls 18 of the car frame.

The dump doors 21 are supported and operated by movable supportin and operating shafts 27. These shafts 2% are in turn supported by the bars 28which are il ustrated extendlng from side to sideof the car body. The guiding and supporting bars or tracks 28 may of course consist 'of separate members at each side of the car instead of extending continuously across the car as illustrated. They are provided with upwardly turned ends 29 which are fixed to su iporting plates 30 which i i I extend downwardly r om the frame of the car. Suitable rivets 31 maybe used to fix the said bars to the plates 30. The guiding and supporting bars 28 are formed with upwardly and inwardly sloping portions 28 w rich terminate in a horizontal portion 28" at the center of the car.

of course, that the guiding and supporting bars or tracks 28 might be arranged horizontallyand the doors rovided with in clines sloping downward y and outwardly, or the tracks 28 might be inclined and inclines also provided on the doors as shown tions, but

in Patent 826,874 July 2-1 1906. a

The supporting and operating shafts 27 are provided with pinions 32 at their ends and also at the middle of theiricngths. These pinions mesh with teeth 34 of racks 33 which are fixed'to'the guiding and supportgranted to Spencer: Otis in bars 28.

he guiding and sup orting bars above de cribed are those which are placed at the mi dle' of the lengths of the supportin and o crating shafts 27. At the ends 0 the s aft 27' a substantially similar construction is provided. The racks 35at this point are fixed to guiding and supporting bars 37 which have the same form in their body porare provided with slightly differentend portions. These end port-ions 37* are longer than'the end dportions 29 of the 'previously describedgui e bars and extend a u wardly to the stays 38 in the carstructure.

- uitable rivets stags 88.

39 join the ends37fto the be supporting and operating shafts" 27 uiding and supporting It will be 0bvious,-

'49 have downwardly .which are provided with slots 51 through which is placed the supporting and operatshaft e (giuide bar The sleeve 54 is bear directly u on the an le bars 40 which are riveted to t e previous y described angle bars 23 on the under side of the doors: 21. The flange of said angle bar 40 presents a larger wearing surface for-the said shaft 27 to act upon. i

At the middle of the len th of the supporting and o crating sha t 27 is fixed a Worm wheel 4l hy means of the key 42. The worm 43 is placed directly above the wheel 41 and meshes therewith. This worm 43 is slidably but nonmotatively en aged with a shaft 46. The shaft 46 is pref rably square in form and fits the square opening'in the worm 43. By this means the non-rotative engagement is efiected.

The shaft 46 is arranged transversely of the car and of the supporting and op shafts 27 and directl above the sand shafts 27 as above describe The sleeves 44, having square apertures, are placed upon the shaft 46 and these sleeves have a cylindrical bearing in a movablebe'aring block 49. The

purpose of this bearing block is to hold the worm wheel 41 and the worm 43 in mesh and to cause the worm to travel longitudinally u on the square shaft 46. This movement 0? the worm 43 along the shaft 46 is necessary in order to maintain the proper engagement of the worm and worm wheel while the supporting and operating shaft 27 is travelingalon the upwardly inclined portion 28 of t e guiding and supporting bar 28.

The sleeves 44 are placed within the .upwardly projecting loops or e es 49 of the block 49 and are retained t erein by the flange 45. The worm 43 has an against the sleeve 44. The movable blocks rojecting wings 50 ing shaft 27. The supporting and operat' ing shaft 27 bears against the side walls 52 in the'slot 51 andby this means is enabled to cause the block- 49 to travel with it throughout its door operating movement.

The sjxlaft 46 which we ma ends from side to side of the car guided at. its ends by the vertical 59 which is bent to a U-form and epends from the side walls '15 of the-car body. It'is fixed to the. sidewalls 15 by suitable rivets 60. Each end of the shaft 46 is inserted in a' sleeve 54 which has "a square opening 54 to receive it. Each of and is crating end bearing call a power these sleeves 54' has a cylindrical bearing in a slide block 55 which tical guide bar 59. v block -55 prevent said sli e block from s1id-. ing outwardly over .the end of the shaft. provided with a flange ,57

is guided by the verwhich of sai sleeve. A pin 58 throu h the shaft 46 prevents theinward sliding 0 said parts.

reve ts a similar outward movement I.

Flan es .56 on the slide by means of The outer ends of the shaft 46 are adapted toreceive the hub of an operating crank or other suitable device for said shaft.

It will be'obsc'rved that the central diseharge openih s have a vertical extension at each of their lateral edges which is due to the fact that the lower flange 18 of the frame member 18 has a osition some distimes above the level of the doors 21. This vertical extension of the discharge opening is closed by theupwardly turned edge 22 of the door 21. It will also be seenthat this vertical extension of the projects laterally some distance beyond the walls 18 of the frame. The sloping end floor plates 16 are provided with outwardly projecting portions 16? which fill the said discharge openings at the ends as far as the upwardly turned. edges 22 of. the doors 21. The transverse frame member 19 is also provided with similar outwardly projecting portions at its two lower edges which fill the dischargeopeuings at the sides as far as the upwardly turned edges 22.

The operation of my in'iprovements here in described is substantially as follows: The operator places a hand crank or other suitable device on either of the outer ends of the power shaft iti. By rotating this shaftthe worm s8 is caused to rotate and .to drive the worm wheel 4.1. The worm wheel 41 being fixed to the supporting and operating shaft 27, said. shaft is rotated and the pinions and the teeth 3i of the racks the said. shaft 27 is caused to move upwardly and inwardly along the inclined portion of the guiding and supporting-dOors Q-S -The above described opera t-ion takes place when the operator rotates the power shaft 46 in such direction as to close the doors. The shaft 2? bears upon the side walls 52 of the slots 51 in the bean ing blocks 49 4:6. The worm 43 be ing confined between. the upwardly projecting bearings 49 is obviously caused to travel with said. bearing block. and to be held it? mesh with the worm wheel 51 throughout the whole extent of the movcmentof the ShlftS 27. The above described movement. continues until the supporting and operating shafts 27,-havc reached the horizontal portion 28" of the guiding and supporting bars 28 at which time the doors 21 will have been moved to their closed position beneath the central discharge openings. The doors 21 are clearly held in constant contact with the shaft-27 "by gravity and their move .ments are controlled by the said shaft 27. Afterthe shafts 27 have reached the horizonta l portion 28" ofthe guide bars 28 there s noytendency to slide downwardly and the doors' fare thereb securely'held in their "loss r sifiaa applying power todischarge opening I and pushes the said bearing blocks along-the shaft A reverse-rotation of the shaft 4E6 Will cause the worm wheel 4:]. and hence the shafts 27 to move in the opposite direction until the said shafts 27 reach the inclined portion of the bars, after which gravity assists in the downward movement. During the movement of the shafts 27 along the inclined portion 28 of the guide bars 28 the power shaft 46 has a vertical movement. The U-shaped guide bar 59 steadies the shaft 46 in its vertical movement.

The doors 21, being hinged at a point a considerable distance above the level of their bodies,will have an outward or lateral movement as well as a downward movement and these combined outward and downward movements roduee a large opening for the discharge of the material in the car with a small angular movement of said doors. This permits the disposal of the discharge openings at a very low level and hence providcs a large increase in the capacity of the car over that heretofore attained.

While I have'described more or less precisely the details of construction, I do not wish to be understood as limiting myself thereto, as I contemplate changes in the form and proportion of parts and the sub stitution may suggest or render expedient without departing from the spirit of my invention.

1; In a dump car having central discharge openings, a-pluralit-y of hinged doors meeting at the center line of the car and having their outer edges turned at an angle to their bodies and hinged beyond said edges and above the plane of said bodies, movable supporting and operating shafts for said doors; tracks for said shafts supported by the frame of the car, and means for moving said shafts along the tracks.

2. In a dump car having central discharge openings, a plurality of hinged doors arranged in parallel rows longitudinally of the car and hinged adjacent the outer edges of the discharge openings, said doors having their" outer edges turned upwardly andhinged above the plane doors and their opposite edges meeting of equivalents as circumstances of the bodiesof the,

along the longitudinal center line ofthe discharge openings, movable supporting andoperating shafts for said doors, guiding and supporting bars for said shafts adapted to cause the doors to close when the shafts are moved toward the CGHtGIKOf the car, and

means for effecting such movement of the..

shaft-s.

3. In a dump car havin central discharge openings, and a series, of d ump doors hinged near the. outer edges of said openings, su porting and operating shafts for said doors; tracks -.for said shafts supported by the car frame, and mea'nsfor. moving said shafts upon said tracks.

' on said shafts engaging said 4. In a dump car having central discharge openings and dump doors hinged near the outer edges of sa1d openin s, supportmg and operating shafts for said doors, tracks for said shafts sloping upwardly from thelr outer portions to ahorizontal portion near the center of the car, racks on said sloping pinions on said shafts and means for rotating said shafts.

5. In a dump car having central discharge openings, dump doors hinged near the outer edges of said openings, movable supporting and operating shafts for said doors, tracks for saldshafts, racks on said tracks, pinions racks, a worm gear on each of said shafts, a worm meshing witheach of said gears, a power shaft arranged transvexsely of said supporting and operatin shafts and on which said worms areslida ly and nonrotatively mounted, and

movable bearing blocks holding said Worm. slidably. adapted gearing in mesh, said blocks bein mounted .on said power shaft an to travel with said supporting and operating shafts,-

6. In a dump car having central discharge openings and dump doors hinged near the outer edges of said openings, movable supporting and o crating shafts for said doors, tracks for sai shafts, means by which said shafts are moved along said. tracks when said I shafts are rotated, a worm gear on each of said shafts, a worm meshing'with each of said gears, a power shaft arranged transversely of said su porting and operating shafts on which sai worms are slidably and 'nonrotatively mounted, and movable hear ing blocks holding said worm gearing in mesh, said blocks being slidably mounted on a said power shaft and adapted to travel with 6O 'guiding and su sald supporting and operating shaft.

4 In a dump car having central dischar e openings and dum doors hinged near t e outer edges of said openings, movable supporting and operating shafts for said doors, tracks, means by which said shafts are moved along said tracks,when said shafts are rotated, a power shaft arranged trans+ versely. of said supporting andoperating shafts, worm gearing connecting said shafts, and movable bearing blocks holding said worm gearingvin mesh,- said blocks being slidably mounted on said power shaft and adapted to travel with said supporting and operating shafts.

8., In. a dump car having central discharge openings and dum. doors hinged near the outer edges of sai openings, movable supporting and operating shafts for said doors, porting tracks for said" shafts, a-power s aft arranged transversely of said supporting and operating shafts;

Worm gearln connecting said shafts, and movable bearing blocks holding'said worm gearing in mesh, said blocks being slidably mounted on said power shaft and adapted to travel with saidsupporting and operating shafts.

9. In a dump car having central dischar e openings and dum doors hinged near e outer edges of sai porting and operating shafts for said doors, guiding and shafts, a power-s aft arranged transversely of said supporting and operating shafts, Worm gearing connectingsaid shafts,'and meansfor holding said worm gearing in mesh'during the door operating movements of said supporting and operating shafts.

10. In a ,glump car having central discharge openings and dump doors hinged adjacent the outer edges of 'said openings, movable supporting and -o crating shafts for said doors, guiding an supporting tracks for said shafts, a. power shaft arranged transversely of said supporting and operating shafts, and means operatlvely connecting said power shaft. and said supporting and operating shafts.

'11. In a dump car having a central 'discharge opening,a chute leading to said open ing, a hor'izontalfloor extending completely across said opening, said floor consisting of doors havin their outer edges turned up- Wardly, sai upturned edges forming prolongations of the side walls of said chutewhen said doors are closed.

12. In a dump car having a central discharge opening, a chute leading to said open ing, a horizontal floor extending completely across said opening, said floor consisting of doors havin wardly, said upturned edges forming rolongations of the side walls of said c' ute when said doors are closed, and hinges for said" doors. secured to the upturned edges thereof. r v

13. In a dump car having central discharge openings, dump doorshinged at theouter edges of said openings, ing and operating shafts for said doors lying parallel to the hinged edges of said'doors, a

power shaft arranged transversely of said' shafts between the central discharge open openings, movable supsu porting tracks for said their outer edges turned updoor supportings, means operatively connecting said power shaft and said'support-ing and operatmg shafts to rotate said shafts, and means by which said rotation causes said shafts to operate said doors. i

14, In a dump car having central discharge openings,

outer edges of saidopemngs, door sup orting and operating shaftsfor said doors ying parallel to the-hinged edges of said doors, a, power shaft arranged transversely "of said shafts between the centraldischarge '0 enings, and means by which saidpower' s aft operates said door supporting and operating shaftsto close said doors,

12'0 dump doors hinged at the i 15. In a dump car having central discharge openingsg; dump doors hinged at the .outer edges of said openings door supportand operating shafts, and. means for. opering and operating shafts for said oors 1 mg parallel to the hinged edges of said oors, a power'shaft arranged transversely of said shafts between the central discharge.

openings, means by which said power shaft operates said door supportin and operating shafts to close said doors, an a framememberseparating said discharge openings and protectingsa d transverse shaft and parts connected therewith. F

16. In a dump car, dump doors arranged in separated rou s, movable supporting and-operating 511m for said doors, a power shaft arranged transversely of the first named shafts, between said groups, and means by which said power shaft is operatively connected to said supporting andoperating shafts throughout their door operating movement.

17. In a clump car, dump dbors, movable supporting and. operating shafts for said doors, each of said shafts adapted to support'and operate a lurality of doors, said doors being arranged in separatedgroups, a power shaft supported by said supporting atively connecting said shafts'to said power shaft throughout the travel of said shafts.

18. In a dump car, dump doors, movable supporting and operating shafts for said doors, each of said shafts ada ted to support and operate a plurality 0 doors, said doors being arranged in separated groups, and means arranged between said groups for operating said shafts.

13. In a center dumphopper car horizontal hinged floor sections at the outlet of-thehopper, displaceablc supporting shafts for said hinged sections,isaid parts being so related as to transmit the load vertically through said shafts to the .car frame when the hinged floor sections are closed.

20. In a center dump hopper 'car horizon-' tal hinged floor sections at the outlet of the hopper, displaceable supporting shafts for said hinged s eetions, supporting tracks beneath said shafts, said arts being so formed that when said hinge floor sections are in closed position said-shafts lie between parallel surfaces on said'doors andtraks. n

21. In a-car, door operating mechanism comprising two rotatable and bodilyjmov able shafts; and gearing COIlHBClZlDg{ fi id' shafts. I 22. In' a car,

a hinged dump door, {m-

tatable and bodily movable operatin shaft-Q.

engaging said door, and a rotatabe and. bodily. movable' power shaft extending trans-- versely of saidoperating shaft and gearedthereto.

- 23. In 'a center dump'hopper car horizontal floor sections hinged at the longitudinal sides of the hopper outlet,/displaceable longitudinal supporting shafts beneath. said floor sections, sup-porting tracks for'said' transmitting thelcad vertically to said track when the doors are in closed position,--and, means for dis lacing saidshaft, said means to follow the movement of being adapts said shaft. 25. In a dump car, a dump door,-a reciprocable and rotatable supporting andoperating shaft therefor, afeciprooab and having a central dis pening, a displaceable suprotatable power shaft extending transversely of said'supporting and operating shaft, and

means forcommunlcating movements of reciprocatlon and rotation from one of said shafts to the other,

In testimony whereof, I my name.

VVitnes ses v M. E; StroU'rnNBURoH, G. F. MOIIUGHV Joniv'o. 'NEIKIRK.

have subscribed. 

